Light tubing, a max of 45mm tires, and geometry for long days.

The sibling to the Sour Purple Haze, the Sour Clueless is their most all-road platform designed for long days and multi-surface adventures. All the "go" and none of the bloat, the Clueless is a pared down mile-muncher.

Clueless? Not sure where to go next? The Clueless will help you get lost!

The Clueless is your best friend for long days in the saddle on mixed surfaces. Whether those surfaces are gravel, asphalt, or just the rough roads between coffee stops, the Clueless is game. Fenders and lights, this bike will take you to the end of the world, or the office before 8am. Knobby tires and fast wheels and you can take on any ridiculous gravel route your chaotic friend has dreamed up.

All of this, handmade!

Fast and agile, but stable enough for when the road turns into a "road".

The Sour Clueless is designed for all rides and all roads, big or small, bumpy or as smooth as a pancake. The platform has been used as a daily driver, your trusty companion to get to work everyday, but also as a thoroughbred in gravel races throughout Europe and North America.

Sour gave the bike clearance up to 45mm tires, 38mm with fenders, to make this bike into a real Swiss army knife. This tire size combined with an agile geometry means the Clueless is calm when it needs to be, but will light up any forest track when asked to. Ace.

All the mod-cons, none of the headache.

Steel may be the "original" material to build bikes, but that doesn't mean it has to be old fashioned. The Clueless have all the modern conveniences including internal cable routing, tapered headtube, and a threaded bottom bracket.

The cable routing jumps out of the frame around the bottom bracket, out of sight, and then continues to the back of the bike externally. Not only does this make service easier, it also saves you a headache or two routing the rear brake and derailleur!

And as you'd expect, the Clueless gets all the smart details to run a rear rack, fenders and all the bottles for long days in the saddle.

Details of the Sour Clueless frameset

Clueless frame

• Sour Bicycles frames are made by hand, one-by-one, in their own facility in Saxony, just outside of Dresden
• Custom tubing designed and drawn for the frames, it's a multi-butted heat-treated 4130 CrMo steel that's ready to stand the test of time
• Steel is produced from a partially recycled product in Germany and drawn by one of the worlds leading production facilities in Taiwan
• Dropouts are designed in-house in Dresden and have a replaceable derailleur hanger
• The seat clamp is designed in-house and is integrated into the frame. Should it ever fail, the frame can be professionally modified to use a traditional clamp, if repair of the original clamp is not possible. Sour has never seen one fail
• Headtube: EC34/ EC44 Tapered 1 1/8" - 1 1/2" headtube
• Bottom bracket: 68mm T47 threaded bottom bracket
• Axle: 12mm x 142mm thru axle
• Seat post: 27.2mm
• Brake standard: Flat Mount FM160 Direct
• Wheel size: Frame Size XXS-S are 650b optimized (bb height), FrameSize M-XXL fit 700c
• Tire clearance: up to 45mm
• UDH/Transmission Compatible
• Fender and rack mounts
• Recommended tire size 35mm - 45mm
• External downtube cable routing
• Brake hose routing internal optional
• Three water bottle braze-on's
• Low standover height
• Ovalized lower seattube section for better power transfer
• Ovalized toptube for comfort and precise steering

Discover Carbon Fork

The perfect fork to pair with a pack-light-travel-fast Sour Clueless build. Sour loves the versatility of the Clueless frame, and this fork is just the cherry on top. Cargo cage mounts for those extra long rides, but minimal enough for all the day-to-day grind. Perfect.

• Maximum Tire Width: 45mm
• Axle to Crown Length: 402mm
• 45mm Rake
• Tapered Steerer Tube 1 ½" - 1 ⅛"
• Thru-axle 12 x 100mm
• Material UD Carbon
• 3 Cargo Cage Eyelets on Fork Legs (max. 3.5 kg per side)
• Flat Mount Brake Mount 140/160mm
• Fender Mounting Possible
• Weight with full length steerer and thru axle: ±515g

Included with your frameset

• Clueless frame & Discover Carbon fork
• All the grommets and small parts to run any cabling you wish and a derailleur hanger
• Rear thru-axle
• Front thru-axle